Polish-Lithuanian War

The Polish-Lithuanian War (1919–1920) was a conflict between the newly independent Poland and Lithuania over their shared border, particularly in the Vilnius region. After World War I, both nations sought to establish control over territories they considered vital to their national identity, leading to clashes. The war ended with Poland's victory and the incorporation of Vilnius into Poland, though the conflict underscored the fragile border agreements. The outcome influenced future relations, and the territorial disputes remained somewhat unresolved until later diplomatic resolutions.